Add contributor for PR #1746 and fix test pytest marker

- Add ChiragBellara to CONTRIBUTORS.md for sitemap seeding fix
- Add missing @pytest.mark.asyncio decorator to seeder test

CONTRIBUTORS.md

@@ -24,6 +24,7 @@ We would like to thank the following people for their contributions to Crawl4AI:
 - [NanmiCoder](https://github.com/NanmiCoder) - fix: crawler strategy exception handling and fixes [#271](https://github.com/unclecode/crawl4ai/pull/271)
 - [paulokuong](https://github.com/paulokuong) - fix: RAWL4_AI_BASE_DIRECTORY should be Path object instead of string [#298](https://github.com/unclecode/crawl4ai/pull/298)
 - [TheRedRad](https://github.com/theredrad) - feat: add force viewport screenshot option [#1694](https://github.com/unclecode/crawl4ai/pull/1694)
+- [ChiragBellara](https://github.com/ChiragBellara) - fix: avoid Common Crawl calls for sitemap-only URL seeding [#1746](https://github.com/unclecode/crawl4ai/pull/1746)
 
 #### Feb-Alpha-1
 - [sufianuddin](https://github.com/sufianuddin) - fix: [Documentation for JsonCssExtractionStrategy](https://github.com/unclecode/crawl4ai/issues/651)

tests/general/test_url_seeder_for_only_sitemap.py

@@ -1,9 +1,11 @@
 import asyncio
+import pytest
 from crawl4ai import AsyncLogger, AsyncUrlSeeder, SeedingConfig
 from pathlib import Path
 import httpx
 
 
+@pytest.mark.asyncio
 async def test_sitemap_source_does_not_hit_commoncrawl():
     config = SeedingConfig(
         source="sitemap",